Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress showing my new design it being understood that the tread pattern is repeated throughout the circumference of the tire tread and buttress,the opposite side being substantially the same as that shown;

FIG. 2 is a front elevational view thereof; and

FIG. 3 is a side elevational view thereof.

The broken lines in the drawing are understood to be for illustrative purposes only. 

The ornamental design for a tire tread and buttress, substantially as shown and described. 